History 1,387 Social conditions 422 Politics and government 197 Social aspects 195 Race relations 169 Indians of North America 167 Social life and customs 165 more ... Description and travel 139 Motion picture industry 132 Mexican Americans 129 Gold mines and mining 128 Ethnic relations 121 African Americans 120 Gold discoveries 120 Immigrants 106 Motion pictures 104 Law and legislation 102 Economic conditions 99 Ethnic identity 99 History and criticism 97 Manners and customs 91 Artists' books 86 Emigration and immigration 84 Architecture 79 Japanese Americans 75 Chinese Americans 73 Political aspects 73 Government policy 71 Political activity 66 Education 63 less ...